Develop Reference

Read Data From MongoDB When Document Structure Is Different

We are currently working on a .NET Core application and we are using MongoDB for it. I am using .NET Driver to access the data. All the data we are saving in a collection has different types of data structure.
For example, it has first document which has Name, Phone and a Payload which has embedded document in which we are saving address:
{
"Name": "TestName",
"Phone": "23846787",
"Payload": {
"Address": "TestAddress",
"City": "TestCity"
},
"Active": true
}
Then in the same collection we have another document which has Name, Phone and a Payload which is completely different from first one:
{
"Name": "TestName2",
"Phone": "54568765",
"Payload": {
"Weight": "70",
"Age": "45",
"Gender": "Female"
}
}
Now when we use .NET driver to get both of these records, we get an error because it cannot cast the embedded document into an object (as it doesnt know about the object). We need to tell it, which type of object is the embedded document. But we dont want to do it because we have several types of payload we want to save. I tried using discriminator "_t" but it didn't help.
Can someone please suggest how we can read the data when we have different elements in the document and also has embedded documents?

You can define a convention indicating that the client must ignore the elements that it is unable to map:
var conventionPack = new ConventionPack
{
new IgnoreExtraElementsConvention(true)
};
ConventionRegistry.Register("conventions", conventionPack, _ => true);
var client = new MongoClient(options)...

Post image into list sharepoint with Microsoft Graph

I am working on MS Sharepoint with Microsoft Graph API. I call MS Graph API with .Net Core v2.1.
I want to do a POST request on a Sharepoint List where one of the column is an image column, but I can't find documentations about how to do that... Does anyone know more about how to do it please?
Update:
I saw this post and I changed my json :
{
"fields": {
"Title": "Test",
"Photo": {
"Url": "https://myurl/picture.jpg",
"Description":"This is my picture"
}
}
}
But I have this error message :
{
"error": {
"code": "-1, Microsoft.SharePoint.Client.InvalidClientQueryException",
"message": "A value without a type name was found and no expected type is available. When the model is specified, each value in the payload must have a type which can be either specified in the payload, explicitly by the caller or implicitly inferred from the parent value.",
"innerError": {
"request-id": "34773f4f-131f-4249-8a03-b8a820ba4a6b",
"date": "2019-05-16T13:26:17"
}
}
}
It seems that it expects the Photo's value to be a PrimitiveValue and not an object...

May be this should help you.
POST
https://graph.microsoft.com/v1.0/sites/{site-id}/lists/{list-id}/items
Assuming all your images are already uploaded in your site assets folder. Added the below JSON for the image column with site asset image URL id
POST https://graph.microsoft.com/v1.0/sites/{site-id}/lists/{list-id}/items
Content-Type: application/json
{
"fields": {
"Title": "Widget",
"Color": "Purple",
"Weight": 32,
"image": "/assets/image5.png"
}
}
reference: https://learn.microsoft.com/en-us/graph/api/listitem-create?view=graph-rest-1.0&tabs=javascript
Hope it helps

Get all information about Facebook posts including reactions

I'm having a problem with the URL of the Facebook Graph API. Is there any possibility to get all the fields of a Facebook post including reactions? I use the following URL for the posts:
https://graph.facebook.com/{pageName}/feed?access_token={access_token}
Now I'm getting data like this (which is quite nice):
{
"data": [
{
"id": "someId",
"from": {
"Name": "Page name",
"category": "Sports Team",
"id": "someId"
},
"message": "Hello world!",
[...]
"shares": {
"count": 1
},
"likes": {
"data": [
{
"id": "someId",
"name": "Some person"
}
]
}
},
[...]
]
}
As for now I have to get the reactions (LOVE, WOW, HAHA, SAD, ANGRY and THANKFUL) by downloading the json from the following URL for every single post (and this is very time consuming):
https://graph.facebook.com/v2.9/{postId}?access_token={access_token}&fields=reactions
The only problem is that I can't get the reactions when using the "normal" URL (without &fields). Is there any chance to get all information including reactions without having to add all the fields to &fields=from,message,likes,shares,reactions?

From CBroe's comment:
I had to pass all the fields I wanted to save to my DB in my URL:
https://graph.facebook.com/v2.9/{pageName}/feed?access_token={access_token}&fields=id,from,message,name,[...],likes,comments,reactions,shares

Facebook get friend list issue in Unity

I use Graph API Explorer User Data Permissions and check "user_friends" ,
use FQL Query to fill in "/me/friends", I can get it below:
{
"data": [
{
"name": "xxx",
"id": "750725034949941"
}
],
"paging": {
"next": "https://graph.facebook.com/v2.2/1569963793218579/friends?limit=25&offset=25& __after_id=enc_AexiIZhvUUA7W93CyCbEKqop8pgwMeZe0FVYg2fNQIrAxRs7nDvv1nuUG_aoKR8JOxUf29FXPlsfg9xVsGgDDToj"
},
"summary": {
"total_count": 1
}
}
But I use Unity app to call FB.Login("user_friends,email,public_actions",callback);
then call FB.API("/me/friends")
I only get the result below:
{"data":[],"summary":{"total_count":1}}
How to modify C# code to get friendList detail?

That´s a new feature of v2.0: You only get the friends who authorized your App too. If no other friend authorized your App, data will be empty. Also, FQL is deprecated.

How to manage Facebook api response data in C# asp.net?

How to convert facebook api response in user readable HTML format?
I call graph api
https://graph.facebook.com/me/feed?access_token=<token>
below is my response data from API.
{
"data": [
{
"id": "100000626589435_240877109276507",
"from": {
"name": "Abhi Patel",
"id": "100000626589435"
},
"type": "status",
"created_time": "2011-08-02T10:36:17+0000",
"updated_time": "2011-08-02T10:36:17+0000"
},
{
"id": "100000626589435_240760105954874",
"from": {
"name": "Abhi Patel",
"id": "100000626589435"
},
"type": "status",
"created_time": "2011-08-02T03:02:21+0000",
"updated_time": "2011-08-02T03:02:21+0000"
},
{
"id": "100000626589435_223775454320006",
"from": {
"name": "Abhi Patel",
"id": "100000626589435"
},
"picture": "http://profile.ak.fbcdn.net/hprofile-ak-snc4/274314_100000898272591_5481895_q.jpg",
"link": "http://www.facebook.com/?ref=nf_fr",
"icon": "http://static.ak.fbcdn.net/images/icons/?8:",
"type": "link",
"created_time": "2011-06-28T18:56:44+0000",
"updated_time": "2011-06-28T18:56:44+0000"
}
],
"paging": {
"previous": "<previous link>",
"next": "<next link>"
}
}
also want paging in facebook response data,
I want 20 records from facebook api response. How to manage this things..

Facebook returns raw JSON data. There are no style elements to it. It's up to you to present the data returned in the format you choose. Imagine if Facebook returned HTML and style elements. That wouldn't work very well for desktop applications or mobile devices. Instead, they just give you the raw data, and you design the HTML elements, or the WPF Views, or whatever to show the data you want to show.
By returning the raw data, you can also store it locally in a database for your own queries, or your own applications purposes.
Edited to add: You can parse out the objects by accessing the JSON elements directly, or you can deserialize the result to C# objects.
Console.WriteLine(response.data[0].from.name);
As for paging, you need to parse out the Paging elements. The Facebook C# SDK returns dynamic objects, so you can do something like
string next = response.paging.next;
string prev = response.paging.prev;
And then just make a request to each URL to fetch the data you want.

Use JSON.net and convert into the XML then it would be easy to manage for you.